Spring seat or bottom.



No. 668,335. Patented Fob. I9, MN.

6. S. MARSHALL &.F. E. DAVIS.

SPRING SEAT'OB BOTTOM.

' (Application flied Oct. 12, 1900.) '(No Model.)

Ym: Noam: nmns no. lmcmnqmou WASNINETON o c Nrrn Sterne ATENT rrrcn.

CLINTON S. MARSHALL AND FRANK E. DAVIS, OF WORCESTER, MASSACHU- SETTS; SAID MARSHALL ASSIGNOR TO THE AMERICAN STEEL AND \VIRE COMPANY OF NEW JERSEY, OF NEW JERSEY.

SPRING SEAT OR BOTTOM.

$PEGIFIGATIGN forming part of Letters Eatent No. 668,335, dated February 19, 1901.

Application filed October 12, 1900. Serial No. 32,863. (No mod l.)

T l w w it y OOH/067%! pressed below the upper surface of the frame Beit known that we, CLINTON S. MARSHALL sides a, as best illustrated in Fig. 2; but this and FRANK E. DAVIS, citizens of the United is not a necessary feature, and they may be States, and residents of Worcester, county of level with the frame-surface, if desired.

5 Worcester, and State of Massachusetts, have At the points along the length of the wires invented certain new and useful Improvea where the springs c are to be located the ments in Spring Seats or Bottoms; and we-do wires are provided with pairs of downwardlyhereby declare the following to be afull, clear, extending loops (1 d, and between the indiand exactdescription of theinvention, such as vidual loops of each pair the wires are bent to will enable others skilled in the art to which it upwardly, as indicated at c in Fig. 2. The appertains to make and use the same. number of these pairs of loops varies with The invention relates to spring-bottoms for the number of springs, and the size of the beds, sofas, seats, and the like; and the parloops will be determined by the size of the ticular object in view is to secure the coiled wires and the diameter of the end coils of the t5 springs to their supporting-wires by a simple springs. and efficient arrangement that will brace and The springs are connected with the wires 1), steady them against tipping and lateral deas indicated in Fig. 2, Where it will be seen flection when the weight of the person is that the wires pass transversely through the thrown on them. springs just above the lowermost coil or con- 20 The invention has to do with that type of volution and the pairs of loops extend downbottoms which consists of helically coiled wardly through and beyond the end coil, the springs that are secured at their lower ends middle bend e of the wires projecting up cento supporting-wires which extend across betrally within the coil. tween the side pieces ofthe main frame. It The distance apart of the individual loops 25 is illustrated in the accompanying drawings, forming the pairs above described is reguwherein lated by the diameter of the end coils of the Figure 1 is a plan view of a chair-seat; and springs, the object being to have the coils fit Fig. 2, a cross-sectional view, the springs and closely on the loops, so as to be braced and supporting-wires being shown in elevation. steadied by them.

0 Referring to the views, a denotes the side The extent to which the loops project downpieces of the seat or bed frame. It may be wardly is not a material matter, so long as made of wood or metal, as desired, and may they pass clear through the lower coils. also be of any preferred size and shape. Ex- Preferably the bends e extend upward suftending across between these side pieces are .ficiently to permit cross-wires f to be passed 35 wires 1), to which the springs c are secured. at right angles to the wires 19 on a level with These wires support the springs and are sethe latter through the springs immediately cured in any suitable manner at their ends above the lower convolutions, said wires passto the side pieces. As herein shown, their ing under the bends e and over the lowermost ends are turned down and driven into the coils.

40 upper surface of the pieces a; but obviously The construction being as thus described, 0 the invention is not restricted to any parit will be noted that the springs cannot be ticular way of fastening them. There maybe lifted off the wires, but are securely locked any desired number of these wires, dependthereto by the cross-wires f, as well as by the ing on the size of the springs and the charpassage of the supporting-wires through them.

45 acter of the bottom. The springs are of the Furthermore, the crosswires steady the helical type, long well known, and are arspringsbyprovidingadditional points of supranged with their largest coils at the upper port at right angles to the wires 1). ends, so as to afford the greatest amount of Having thus described our invention, what supporting-surface. we claim is 50 The supporting-wires b are preferably de- In a spring-seat, the combination of a heli- 10o cal spring, a supporting-wire passed transversely through the spring above the lower convolution, and formed into a pair of depending loops which extend downwardly throngh and are closely encircled by said lower convolution so as to brace and steady the spring, and a cross-Wire passing through the spring above the lower convolution at right angles to the supporting-wire, said crossi CHAS. B. SANFORD,

- J. NELSON OHAMPLIN. 

